Norwood-205 Street
is a terminus that wasn't meant to be a terminus. The station has one island platform but has the X-switch for switching tracks after the station instead of the much easier and conventional before the station design. Terminating trains come in on the right track, where they are "Temporarily out of service" and probably checked for sleeping passengers. Trains then leave the station and run out of service up to the re-lay tracks beyond the station.
The driver then has to walk back to the other end of the train and the train runs back onto the other platform where it is cleaned and re-enters revenue service. The station also doesn't have any crew quarters the crew is changed at the next stop Bedford Park Blvd (where the B also terminates). The station was built this way because of the then proposed IND second system which would see the subway extended under the Metro-North Tracks and across the Bronx.
The station itself is in very bad condition there is a small mezzanine with fare control and green columns. A lot of paint is pealing and there are garbage bags on the platform since trains are cleaned here. The station is in the worst condition of any on the Concourse line and needs to be re-habilitated as soon as possible. Norwood is also a new addition to the station name and only appears on the map, no one announces "This is a Norwood-bound D train" just "This is a 205 Street-bound D train"